cp's OEIS Frontend

This is a front-end for the Online Encyclopedia of Integer Sequences, made by Christian Perfect. The idea is to provide OEIS entries in non-ancient HTML, and then to think about how they're presented visually. The source code is on GitHub.

A215129 G.f.: Sum_{n>=0} d^n/dx^n (2*x + x^2)^(2*n) / n!.

Table of values

n a(n)
0 1
1 8
2 108
3 1604
4 25000
5 400680
6 6539932
7 108124704
8 1804745052
9 30345973020
10 513246523504
11 8722051475280
12 148808353519644
13 2547317293116512
14 43729600850054640
15 752553083643333008
16 12978731348733064680
17 224258766666165861192

List of values

[1, 8, 108, 1604, 25000, 400680, 6539932, 108124704, 1804745052, 30345973020, 513246523504, 8722051475280, 148808353519644, 2547317293116512, 43729600850054640, 752553083643333008, 12978731348733064680, 224258766666165861192]